• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>IEEE International Geoscience and Remote Sensing Symposium >Landslide Observation from ALOS-2/PALSAR-2 Data (Image Correlation Techniques and Sar Interferometry). Application to Salazie Circle Landslides (La Reunion Island)
【24h】

Landslide Observation from ALOS-2/PALSAR-2 Data (Image Correlation Techniques and Sar Interferometry). Application to Salazie Circle Landslides (La Reunion Island)

机译：从ALOS-2 / PALSAR-2数据（图像相关技术和Sar干涉测量）观察滑坡。应用于Salazie圈滑坡（留尼汪岛）

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In the presented study our purpose is to show the interest of space-borne high-resolution L-band Synthetic Aperture Radar (SAR) images (ALOS-2/PALSAR2 data in SM1 mode) for mapping deformation of slow landslides. The methods we combined are sub-pixel correlation offset tracking techniques and differential SAR interferometry. Hell-bourg and Grand Ilet landslides (our test cases) are located on La Réunion Island in the Indian Ocean with motions up to about 1 m/y. The produced deformation maps resulted better than those obtained in previous studies with C or X band SAR data or with current Sentinel-1 data as L-band data are less affected by the vegetated cover than X- or C-band data. Finally, the possibility of deriving 3D mapping of the displacement by combining ascending and descending acquisitions (each one provides 2 components of the deformation: line of sight and azimuth) is investigated.
机译：在本研究中，我们的目的是显示星载高分辨率L波段合成孔径雷达（SAR）图像（SM1模式下的ALOS-2 / PALSAR2数据）对缓慢滑坡的变形映射的兴趣。我们组合的方法是亚像素相关偏移跟踪技术和差分SAR干涉测量法。 Hell-bourg和Grand Ilet滑坡（我们的测试案例）位于印度洋的LaRéunion岛上，运动速度高达每年1 m。与C或X波段SAR数据或当前的Sentinel-1数据相比，生成的变形图的结果要好于以前的研究，因为与X或C波段数据相比，L波段数据受植被覆盖的影响较小。最后，研究了通过组合升序和降序采集（每个位移提供变形的2个分量：视线和方位角）来得出位移的3D映射的可能性。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号